action='store_const', dest='format', help='alias for -f 22', const='22')
video_format.add_option('--all-formats',
action='store_const', dest='format', help='download all available video formats', const='-1')
action='store_const', dest='format', help='alias for -f 22', const='22')
video_format.add_option('--all-formats',
action='store_const', dest='format', help='download all available video formats', const='-1')